History of Microsoft

William Henry Gates III is an American businessman and philanthropist. A pioneer of the microcomputer revolution of the 1970s and 1980s, he co-founded the software company Microsoft in 1975 with his childhood friend Paul Allen. Following Microsoft's initial public offering in 1986 and the subsequent increase in its stock price, Gates became the world's then-youngest billionaire in 1987, at age 31. Forbes magazine ranked him as the world's wealthiest person for 18 out of 24 years between 1995 and 2017, including 13 years consecutively from 1995 to 2007. Gates became the first centibillionaire in 1999, when his net worth briefly surpassed US$100 billion. According to Forbes, as of February 2026, his net worth stood at US$107.7 billion, making him the 18th-wealthiest individual in the world.

Paul Gardner Allen was an American businessman, computer programmer, and investor. He co-founded Microsoft Corporation with his childhood friend Bill Gates in 1975, which was followed by the microcomputer revolution of the 1970s and 1980s. Allen discovered the wrecks of various famous warships, like the IJN Musashi and USS Indianapolis, and was ranked as one of the richest people in American history by Forbes, with an estimated net worth of $20.3 billion at the time of his death in October 2018.

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Windows 10 is a major release of the Windows NT operating system developed by Microsoft. Microsoft described Windows 10 as an "operating system as a service" that would receive ongoing updates to its features and functionality, augmented with the ability for enterprise environments to receive non-critical updates at a slower pace or use long-term support milestones that will only receive critical updates, such as security patches, over their five-year lifespan of mainstream support. It was released on July 29, 2015.

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open letter written by Bill Gates

history of minor versions of the Windows 11 operating system

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unofficial term used to refer to when Microsoft regularly releases software patches for its software products

business acquisition held from 2022 to 2023

aspect of history